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Combined thermodynamic power and cryogenic refrigeration system using binary working fluid

  • US 6,161,392 A
  • Filed: 10/30/1998
  • Issued: 12/19/2000
  • Est. Priority Date: 09/05/1997
  • Status: Expired due to Fees
First Claim
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1. A method for transforming thermal energy into mechanical energy while simultaneously producing refrigerated air utilizing binary working fluids, comprising:

  • introducing a first gas/liquid working fluid mixture of a non-condensable first gas having high heat capacity and a low temperature liquid into a low-temperature closed bottoming cycle;

    introducing a second working fluid gas into a topping cycle and compressing and expanding said second working fluid gas in said topping cycle to produce power;

    isothermally compressing, isobarically heating, and adiabatically expanding said first working fluid mixture in said low-temperature closed bottoming cycle to produce a refrigerant; and

    utilizing said refrigerant produced in said low-temperature bottoming cycle to cool said second working fluid gas of said topping cycle and to facilitate rejection of waste heat.

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